Thirty prescribed burns were attempted in pinyon-juniper woodlands from fall 1974 to fall 1976. These attempts were made out of fire season, during varied atmospheric conditions, and in several pinyon-juniper communities. An analysis of the successful burns provided us with a method for predicting burning success from windspeed, air temperature, and vegetation cover. An igniting technique is also discussed.

A useful and complete summary of all the scientific information available on one of the most significant plant species in the western and intermountain regions. Among the plant species of the great Basin rangeland, the Purshia—ancient members of the rose family evolved to survive the aridity and temperature extremes of this harsh region—are one of the most important. This book-length study of this key plant species provides a comprehensive examination of the biology and ecology of the species and region.